76378938081 has 8 divisors (see below), whose sum is σ = 101903579904. Its totient is φ = 50886794160.

The previous prime is 76378938073. The next prime is 76378938091. The reversal of 76378938081 is 18083987367.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 76378938081 - 2³ = 76378938073 is a prime.

It is a super-2 number, since 2×76378938081² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76378938091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8118990 + ... + 8128391.

It is an arithmetic number, because the mean of its divisors is an integer number (12737947488).

Almost surely, 2^76378938081 is an apocalyptic number.

It is an amenable number.

76378938081 is a deficient number, since it is larger than the sum of its proper divisors (25524641823).

76378938081 is a wasteful number, since it uses less digits than its factorization.

76378938081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16248951.

The product of its (nonzero) digits is 12192768, while the sum is 60.

The spelling of 76378938081 in words is "seventy-six billion, three hundred seventy-eight million, nine hundred thirty-eight thousand, eighty-one".